Primer for cartridges.



(No Model.)

J. GARDNER.

PRIMER FOR CARTRIDGES.

(Application filed Jan. 2, 1900.)

Patented July |7,-|90o.

' To all whom it may concern:

Nr rEn STATES PATENT FFICE.

J CHN GARDNER,- on NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE WINCHESTEREPEATI G ARMS COMPANY, OF SAME PLACE.

PRIMER FOR c'AnrRIoeEs.

SPECIFICATION forming part a Letters Patent No. 653,953, dated July 17,1900. j

Application filed January 2, 1900. Serial No. 19. (No model.)

Be it known that I, JOHN GARDNER, of New Haven, in the county of NewHaven and State of Connecticut, have invented a new Improvement inPrimers for Cartridges; and I do hereby declare the following, whentaken in connection with the accompanying drawings and the letters ofreference marked thereon, to be afull, clear, and exact description ofthe same, and which said drawings constitute part of this specification,and represent, ina Figure 1, a sectional view of a primer constructed inaccordance with my invention; Fig. 2, a corresponding view of amodification thereof.

My invention relates toan improvement in primers for cartridges, theobject being to produce primers of more exact uniformity than those nowmade and of'superior safety. With these ends in view myinventionconsists in a primer having a sheet-metal cap and "an anvil, one ofwhich parts is formed with a locating-shoulder coacting with'the otherpart to secure for the anvil an invariable lo.- cation with reference tothe fulminate in the capand to pre cut the anvil from movement towardthe f ulminate under any jarring of the primer. I

My invention further consists in certain details 'of constructionand'combinations of parts, as will be hereinafter described, and pointedout in the claim. In carrying out my invention as shown in .Fig. 1 Iform the rigid sheet-metal fiat'anvil A upon its opposite edges withlocating-shoulders a 0,, produced by reducing the anvil in width andarranged to be seated upon ,anannular locating-shoulder 1), formedwithin the sheet-metal cap B, which-may be otherwise. of any approvedconstruction, but which, as herein shown, has an upset head B and acontracted outer end B which, in being-contracted or reduced indiameter, engages with the armsA A at the outer end of the anvil andforces the locating-shoulders a athereof home to a firm' bearing uponthe annular locatingshoulder bgOf the cap. By making the anvilcorrespond width to the internal diameter of the cap the edges of theanvil are brought to bear upon the inner faces of the side walls ,of thecap, whereby the anv-ilis securely held against any rocking movement.

The anvil being fiat and occupying only a portion of the space 'inclosedby the cap, there is ample opportunity for the fire produced by theburning of the fulminate to passout of the cap on opposite sides of theanvil, which,.so far as the operation of the primer is concerned, neednot leave the cap at all. It will be readily understood that under thisconstruction the anvils will always occupy an exact predeter xminedposition within the caps, whereby longitudinal movement in thatdirection; but the anvil is formed, as before, with 10- cating-shouldersa a, designed to be seated upon an annular locating-shoulder 6, formedwithin the cap B. In this construction also the anvils will always belocated in'a predetermined position within the caps, so far as mainpoint. The movement of the anvil in the other direction may berestrained either by friction between the edges of the anvil and the capor in some other way.

and described, but hold myself at liberty to spirit and scope of myinvention.

' I am aware that it is old to locate a sheet of a shotgun-cartridge,the said anvil being provided with projections entering theshell toprevent the anvil from longitudinal moveinent therein. This anvil isformed with an outwardly-projecting part constituting the anvil properand entering the primer, which is located in a pocket formed for itsreception in an independently-formed head which is metal anvil withinthe outer end of the shell.

of the anvil, so as to hold the same against the fulminate C isconcerned, which is the In view of the modifications suggested I wouldhave it understood that I do not limit myself to the exact constructionherein shown make such alterations as fairly fall within the,

applied to the outer nd of the shell, so as to inclose that portion ofthe shell contain ing the anvil. The construction thus describedprovides for giving a fir'm seat co the anvil, but does not and can notsecure that accuracy of relation between the anvil and the fulminatewhich it is the prime object of my invention to achieve. I do nottherefore claim as constituting any part of my invention the rigidholding of an anyil within the shell proper of a cartridge, but limit myclaim to the holding of an anvil within the primercap itself in such away as to secure an invariable location between the anvil and the f ul-Ininate and to prevent the anvil from movement toward the fulminateunder any jarring of the primer.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

A primer having its sheet-metal cap formed with an annularlocating-shoulder, and provided with a rigid, flat, sheet-metal anvilthe the said shoulder of the cap, whereby the anvil is not onlysupported against sidewise deflection throughout its length, but isbrought to a predetermined position withrespect to the cap and withrespect to the fulminate contained in the head thereof, the said primerbeing adapted to be inserted bodily into a pocket formed for itsreception in the head of a cartridge-shell, and the fire produced by theignition of the fulminate passing out of the cap on opposite sides ofthe anvil.

In 'testimony whereof I have-signed this specification in-the presenceof two subscrib- 4o ing witnesses.

JOHN GARDNER.

Witnesses:

DANIEL I-I. VEADER, THos. O. JOHNSON.

